Decoding the Gut-Brain Axis:


How Your Pet’s Microbiome Fuels Total Wellness

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Think of it as a bustling, hidden ecosystem of trillions of tiny living helpers (good bacteria!) residing mainly in their gut, but also in their skin and their mouth. This unique community is essential, working 24/7 like an inner command center to keep the dog healthy and thriving.

It is like a well-tuned orchestra for your dog's body! It's crucial for smooth digestion, properly absorbing nutrients, maintaining a strong immune system, and even influencing their mood and energy levels through the gut-brain axis. When it's in harmony, the dogs feel their best.

Yes, it's fascinating science! The gut and brain are constantly "talking" via the Gut-Brain Axis. It produces beneficial compounds and sends positive signals that can contribute to a more stable mood, sharper focus, and a calmer demeanor in the dog.

It's all connected! The gut-skin axis shows that it helps to regulate the immune system and normal inflammatory responses. This can translate to healthier, more resilient skin and can support a balanced response to common allergens, promoting greater comfort.

How does a healthy gut-brain axis help my dog?

One simple sachet, a dozen ways to support your dog! Plentum delivers targeted nutrition for 12 vital functions including digestion, fresh breath, and a strong immune system, all in one.

A balanced gut microbiome supports a healthy inflammation response, vital for dog's joint comfort and easy movement.

Clear gut-brain communication, fueled by a balanced microbiome, can contribute to dog's better mental clarity and attentiveness.

By positively influencing stress responses through the gut-brain axis, a healthy microbiome can help promote a more relaxed state in dog.

A thriving microbiome helps digestion and nutrient absorption, supports firm stools and helps to control occasional diarrhea for dog's gut comfort.

With primary immune system residing in the gut, a balanced microbiome is key for dog's strong natural defenses and resilience.

Efficient nutrient absorption and reduced internal stress, supported by a healthy gut, directly fuels dog's daily energy.

The gut-skin axis means a balanced microbiome often reflects externally in healthier skin and a more vibrant coat.

A healthy gut contributes to a balanced oral microbiome, while direct oral support ingredients help maintain fresh breath and gum health.

Maintaining a healthy microbiome supports dog's cognitive function and clarity as they age, via the gut-brain connection.

A balanced gut microbiome positively influences the brain, promoting overall well-being and a sense of happiness.

A balanced gut microbiome helps regulate the immune system, supporting a healthy response to common allergens and promoting skin comfort.

A healthy gut microbiome helps in managing the body's waste products, thereby supporting the dog's kidney health and overall renal function.

Journey to Peak Vitality

Week 0–2
Week 3-6
Week 7-12

Prebiotics and our patent pending postbiotics, create internal balance by supporting gut bacteria, which improves immunity, breath, and overall wellness.

  • tick Boost in energy & mood
  • tick Noticeable fresher breath
  • tick Improved gut health
  • tick Features 9 active ingredients

Daily use nurtures the microbiome, helping to maintain proper pH and gut flora, which supports digestive health and normal bowel function while supporting the immune system.

  • tick Supports a balanced gut microbiome
  • tick Stronger immune function
  • tick Promotes healthy skin and coat
  • tick Disrupts oral biofilms by an average of 98%

With ongoing use, expect consistent benefits like fresh breath, improved gut flora, a vibrant skin/coat and improved vision. It helps senior dogs with arthritis maintain their comfort and quality of life.

  • tick Supports cognitive functions
  • tick Promotes heart health
  • tick Eases stiff joints
  • tick Supports long term health
Week 0–2
Week 3-6
Week 7-12

Pets Love It, Pet Parents Post It

How Aging Affects Your Dog's Microbiome

How Aging Affects Your Dog's Microbiome

Nurturing Your Dog's Golden Years from Within

As dogs age, their gut microbiome—their inner world of tiny helpers—naturally changes, and this can affect their overall health and energy. Supporting a balanced microbiome helps your senior dog stay active, comfortable, and age more gracefully through their golden years.

Paws Down the Best Choice

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Trusted by Leading Pet Experts

  • Dr. Imani Washington
    Dr. Imani Washington MS, DVM, CVA

    "I've personally seen the positive impact of Plentum. Its science-backed ingredients effectively target key areas like digestion, joint comfort, and especially oral hygiene in dogs. The efficacy I've observed in canine health speaks for itself."

  • Dr. Edward Sterling
    Dr. Edward Sterling DVM, PhD in Animal Nutrition

    "Plentum provides the balanced nutrition dogs need. With carefully chosen ingredients for digestion and overall well-being, it’s a supplement I trust to support canine health"

Every Ingredient Matters

  • Colostrum
    Colostrum

    Supports immunity and gut health.

  • Canine Oral Health Postbiotic
    Canine Oral Health Postbiotic

    Promotes a healthy oral microbiome for fresher breath.

  • Fish Oil (Omega 3)
    Fish Oil (Omega 3)

    Promotes healthy skin, joints, and cognitive function.

  • Inulin
    Inulin

    Prebiotic: Nourishes beneficial gut bacteria.

  • Licorice Root Powder
    Licorice Root Powder

    Supports a normal inflammatory response and digestive comfort.

  • L-Glutamine
    L-Glutamine

    Helps maintain gut health and enhances immune function.

  • Vitamin E 
    Vitamin E 

    Helps maintain antioxidant function and healthy skin.

  • Selenomethionine
    Selenomethionine

    Supports in overall cellular health and normal thyroid function.

  • Zinc Methionine
    Zinc Methionine

    Helps maintain healthy skin and a robust immune system.

Customer Reviews

Based on 59 reviews
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D
Dasha
Dog Age: 4-8
Dog Weight (lbs): 50+ Lbs
Truly the easiest way to support my dogs' health!

I’ve been using Plentum for both of my dogs—Bella (our sweet older girl) and Becca (our wild child)—and I’m honestly so happy I found it.

For Bella, I just wanted something gentle and effective to support her as she ages. She’s been noticeably more energetic, her breath is fresher, and her digestion is way smoother since we started. She’s picky with food sometimes, but she eats her meals with Plentum no problem.

Becca’s the opposite—full zoomies, all the time. I was mostly looking for something to help her recover faster after play and keep her overall health in check. Since starting Plentum, her coat looks glossier, and she’s been bouncing back from long play sessions like a champ.

I love that it’s just one pouch a day and covers so much—digestion, immunity, oral health. Super easy to add to their routine and gives me peace of mind that I’m doing something good for them every day.

Highly recommend if you want something simple but effective for your pup’s wellness.

— Dasha B.

D
David
Dog Age: 9-15
Dog Weight (lbs): 20-50 lbs
Simple and Effective

Plentum has become a real staple for us! Ever since we started adding it to Oakley's food, she's got so much more pep in her step on our walks. And the best part? Her breath is way better – those cuddles are actually enjoyable now! It's so good to see her doing so well, and it really puts my mind at ease knowing she's getting all that great nutritional support.

R
Rahul
Dog Age: 9-15
Dog Weight (lbs): 20-50 lbs
Cost-Effective and Convenient

My dog enjoys the taste, and I appreciate that this product helps me save money by replacing multiple supplements. It's a win-win.

C
Cindy
Dog Age: 9-15
Dog Weight (lbs): 50+ Lbs
It works

It's really easy to mix into his wet food – seriously, he doesn't even seem to notice it, which is a big win for me. What I've seen is a difference in his digestion. His stools are much consistent, and he just seems to have more energy overall.

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30-Day Satisfaction Guarantee

We’re here to make sure you and your pet are happy! If you’re not loving your purchase, let us know within 30 days, and we’ll make it right — just cover the return shipping.

Frequently Asked Questions

Yes! Plentum is made for dogs of all sizes, breeds, and ages, with AAFCO-compliant, researched ingredients. 



If your pup has any health concerns, we always recommend checking with your vet before starting a new supplement.

Just sprinkle it on your dog’s food—that’s it! No messy chews or hard-to-swallow pills.

Dogs love the taste, and you’ll love how easy it is to give them the support they need.

We’ve made it simple—just follow these guidelines based on your pup’s weight.

  • Up to 20 lbs: 1 sachet daily
  • 20-50 lbs: 2 sachets daily
  • Above 50 lbs: 3 sachets daily

Many pet parents notice fresher breath, better digestion, and a shinier coat within 7–14 days. 



Long-term benefits, like joint support and gut health, keep improving with daily use. No matter your dog’s age, it’s never too early or too late to start!

Plentum isn’t just another supplement—it’s an easy, science-backed way to help your dog stay happy and healthy. Our postbiotic formula works from the inside out, supporting digestion, fresh breath, strong joints, and overall wellness—all for just $1 a day. Think of it as daily TLC for your pup, keeping them active, comfortable, and feeling their best at every age.